caret

R, caret, and Parameter Tuning C5.0

Boosted C5.0 classifiers are known to perform well when stacked up against other classifiers (see, for example, this paper). 

The caret library for the R programming language is an exceptional environment for automatic parameter tuning and training of classifiers. However, caret does not allow for out-of-box tuning of C5.0 tree complexity. This post shows how you can customize caret to do just that.